Horizpntal-thrust bearing



A. KINGSBURY. HORIZONTAL THRUST BEARING.

APPLXCATION FILED FEB. 14. 1913/ IN l/EIV TOR ,4 TTORNEY M. W. m E m FReissued June 8, 1920.

UNITED" STATES ALBERT KINGSBURY, OF PITTSBURGH, PENNSYLVANIA.

HORIZDNTAL THRUST BEARING.

' Specification of Reissued Letters Patent. Reissued June 8 1920.

Original No. 1,201,057; dated October 10, 1916, Serial No. 756,839,filed March 26, 1913. Application for reissue filed February 14,

To all whom it may concern:

Be it known that I, ALBERT KINGSBURY, a

citizen of the United States, and a resident bearings and has specialreference to bearings which are adapted to sustain the end thrust ofhorizontal shafts.

I prefer to embody my invention. in a bearing of the general type shownand described in Patent 947,242 issued January 25, 1910, on anapplication filed by me on May 20, 1907, although I do not intend to,limit my invention to any specific structure.

()ne object of my invention is to provide a bearing of the class aboveindicated that shall embody automatic means for supplying a flood orbath of oil or other lubricat. ing fluid to the contacting surfaceswithout resorting to independent pumping devices;

Another object is to provide a thrust bearing of the shoe type thatshall be adapted to sustain large horizontal thrust pressures and toautomatically establish and maintain an oil film between each of thebearing shoes and its opposed bearing surface.

Other obj ectswill be hereinafter set forth.

I will describe my invention in the following specification and pointout the novel features thereof in appended claims.

Referringto the drawings'Figure 1 is a view in longitudinal section of abearing constructed in accordance with and embodying my invention. Thesame bearing is shown in Fig. 2 which is a, transverse .sectional viewon the line 2- 2of Fig. 1.

is a bearing in which a horizontal shaft 11 is supported. This bearingmay be of any suitable construction and since it forms no part of myinvention, it is not shown or described in detail.

' 12 is a stationary housing and is provided with a flange to which ahousing 14 of my improved thrust bearing is secured by bolts 15. Thehousing 14 comprises a hollow cyv reclindrical body 16 and asubstantially 1918. Serial No. 217,267.

tangular oil well 17, a portion of which is integral therewith, an endplate 18 being secured to the housing by bolts 19 and constituting aremovable retaining wall of the .oil chamber. The hollow cylindricalbody 16,

hereinafter referred-to as the cylinder 16,

has a head 20 provided with a central opening 21 through which anextension 22 of the shaft 11 projects. Mounted on the shaft'extensionagainst a shoulder 23 is a collar 24 which is held against rotationrelatively to the shaft by a spline 25 and has an annu-.

lar thrust bearing surface 26. The collar is clamped against theshoulder by a sleeve 27 and a nut 28 which is screwed onto the end ofthe shaft extension.

An annular support or base ring 30 has a spherically curved surface31-and is seated on-an equalizing washer 32 which is fitted into the endof the cylinder 16 against the head 20. Radial bearing shoes 35 aretiltingly supported in the cylinder 16 upon the base ring 30 and arearranged to engage the bearing surface 26 of the collar 24.. Each shoehas aprojection 36 which fits loosely into an annular groove 37 of thebase ring and acurved seat 38. It is thus prevented from rotating on itsseat and is free to tilt in operation and assume a slightly inclined thecollar. The shoes are held in place by bolts 39 which extend'looselythrough suitable holes in the base ring and are screwed positionrelative to the bearing surface of I into the shoes, the holesbeingcount ersunk to admit the heads of the bolts and springs 41 beinginterposed under the heads. The bolts do not preventthe tilting of theshoes. A plug 42-extends through the cylinder wall into a notchin thebase ring, but any other suitable means for, preventing the rotation ofthe ring may be used. The ring automatically' assumes such a position asto equalize the pressure on the shoes.

It will be noted that the bearing shoes are mounted in such a mannerthat they are free to tilt not only circumferentially ortangentiallyinorder to permit of the formation of wedge shaped oil films between thebearing surfacesbut also radially or transversely. The combination ofradially tiltable shoes with an equalizing support-such as the base ring30 and equalizing washer 32- is ofgreat advantage in all thrust bearingconstructions that are subjected to heavy loads, but it is particularlyimportant and desirable in the case of horizontal thrust hearings inwhich the end thrust is, in most cases, received and sustained 'on amember that 1s offset with respect to'the main frame of the bearingshoes that are closest to the main frame support and thereby causeunequal heatingof different zonal portions of the engaging surfaces.Still another cause of difficulty which is encountered in the useofhorizontal 0r inclined thrust bearings is the location of the uppershoes above the level of the oil reservoir, and the consequentdifficulty in securing equally good lubrication of all portions of thestationary bearing surfaces. The use of an equalizer sup ort for thebearing shoes will permit the atter to adjust themselves to para lelismwith the thrust collar surface only as long as both surfaces-the surfaceof the shoes and the surface of the collar-remain true planes; and eventhen the adjustment, will not be perfect because of the frictionalresistance to the tilting movement of the equalizer support as a whole.In order to obtain uniform bearing engagement between the inner andouter portions of the relatively rotatable bearing surfaces under theactual varying conditions of operation, the use of an equalizer supportmust be supplemented and rendered efficient by the use of pivotalsupports for the individual shoes which will allow those shoes to rockor tilt freely in radial planes, as either or both of the cooperatingbearing members shift in position or alter in form under the varyingconditions of operation. For example, the surface of the collar islikely to become crowned, due. to the frictional heating of the partswhen the bearingis in operation.

Secured to the-left hand end bf the housing 12 is a partition whichis'in the form of a ring 43 and loosely surrounds the hub of the collar24. At the bottom of the ring 43 a cored passage 47 communicates with Ythe oil well 17 at the bottom and opens into the cylinder at the back ofthe thrust collar 24. The opening 45 in the ring 43 is arranged toequalize the oil level in the hous- 7 ing 12 and the well 17.

The back radial surface 50 of the thrust collar may be provided withradial grooves '51, in order to form shallow vanes or blades, for thepurpose of enhancing the oil pumping action as hereinafter explained, orprojections may be secured to the surface 50 for the same purpose, butneither of these exopening 21 into the oil well 17.

edients is essential to the operation of the earing, because a largeproportion of the bearing surface 26 is engaged by the relativelystationary shoes 35 and the centrifugal action is much greater at the'unob structed surface 50 even if this surface is smooth.

There is established as a result of this arrangement, what may be termeda reverse circulation of lubricating fluid over and through the parts ofthe bearing members. In this reverse circulation the oil is first thrownoutwardly to the external periphery of the rotating parts and, by reasonof the pressure thus established, is then forced inwardly 'throu h thespaces or passages 61 between the s oes, to the central chambersurrounding the shaft, from which it again flows outwardly. This reversecirculation which is in the direction opposite to that normallyresulting from the centrifugal action of the parts as heretoforearranged, is a very effective means for supplying oil to the cooperatingbearing surfaces and particularly to those portions of the bearing surfaces which are near the shaft and are most liable to run dry underusual conditions. The advantages of this arrangement are particularlymarked as applied to a thrust caring of the horizonta type because ofthe difficulty usually experienced in obtaining a uniform distributionof oil.

The walls of the cylinder 16 are prefer ably made relatively thick andare provided with means such as for example a plurality of longitudinalholes 55 which are connected alternately at opposite ends by passages 54to provide a zigzag or tortuous path for water or other suitable coolingliquid, the ends of the holes 53 being closedby plugs 55.

The operation of the bearing is as follows: Assuming that as indicatedin the drawings, the oil level is maintained at, or slightly above theopening 45 (this level may be indicated outside of the housing by an oilcolumn 56 or other suitable means) oil will be forced, when the shaft lland the collar 24: are rotating, radially outward along the surface 500:: the collar by reason of the centrifugal forces which act uponit.

Thus the oil is forced through a thin annu lir s ace 57 into thecylinder 16, flooding t e spaces which are provided between the shoes35, between the shoes and the base rin 30, and between the base ring andthe equalizing ring 32. The oil is discharged through an annular passage58 and out of the restricted A small hole 416 permits the escape of anyair that might otherwise accumulate in the upper part of the cylinder16.

The relative movement of the annular thrust. bearing surface 26 over thesurfaces of the universally pivoted shoes 35 forces the caring surfacesand-filling all the tween the annular surface and the shoes,

thereby tilting the shoes circumferentially or tangentially andestablishing the wedge shaped films of oil which are characteristic ofthe operation of my general type of thrust bearings. At the same timethe free radial movement of the shoes in combination with the rocking ortilting movement of the universally pivoted equalizer ring 30, permitsthe bearing surface of each shoe to adjust itself to radial parallelismwith the surface 26 and constantly maintain that parallelism in thecontinued operation of the bearing regardless of changes in the axialrelationship of the cooperating bearing members, and regardless of theradial distortion or crowning of one or more-surfaces of those members.This cooperative and conjoint rocking action of the radially tiltableshoes 35 and of the equalizer ring 30 therefore not only distributes thebearing pressure over different circumferential portions of the thrustengaging surfaces, but also establishes and maintains uniformity ofthickness in the wedge shaped oil films along radial lines; and thusfacilitates and assists in maintaining freedom of radial distribution ofthe lubricant between the bearing surfaces. I have found that this maintenance of radial uniformity in the' thickness of the oil film is a veryimportant and necessary factor in securing the proper free circulatorymovement of the lubricant over and between the engaging surfaces of.thrust bearings of this class, and in obtaining the most efficientantifrictional action of such structures. The attainment of the lastmen-' tioned result is particularly important and desirable in the caseof horizontal thrust hearings in which there is a forced reverse oilcirculation of the character hereinbefore described, because in thatcase the inward movement of the oil across the bearing surfaces isopposed to the centrifugal action of the contiguous rotating parts.

The uniform flow of the oil through the wedge shaped openings betweenthe bearing surfaces is also facilitated, and the efiiciency of actioncorrespondingly increased, by the cooling of the lubricant as it flowsover the water chilled walls of the cylinder 16. This coolingarrangement is particularly effective in reducing the temperature of theoil since the annular chamber 57 is thin and contains only a smallquantity of oil at a time. This small quantity of oil is distributedover the relatively large inner surface of the cylinder 16, thetemperature of the cylinder being held at a determined or desired valueby the cooling water which is supplied to and discharged from the zigzagpassage hereinbefore described, through pipes 59. Not only is thecooling system efficient by reason of the factthat the oil is spreadover a large cooling surface but also because the oil is circulatedrapidly over the cooling surface. r

The opening 45 may obviouslybe closed without affecting the operation ofthe bearingbut by connecting the oil well 17 to the housing 12, a largerbody of oil is available and consequently the oil level is subject toless variation in height.

A check collar 60, shown in broken lines in Fig. 1,,may be mounted onthe sleeve 27 if desired.

Variations in size and. arrangement of parts may be effected within thespirit and scope of my invention and I only intend to be limited by theappended claims.

What I claim is:

l. A thrust bearing comprising a rotatablethrust member having a radialoilthrowing surface and a bearing surface, sta- .tionary bearing memberscooperating with the bearing surface of the rotatable member, an annularshell arranged in close proximity to the radial oil-throwing surface ofthe rotatable member and forming an oil chamber which surrounds thebearing members, an

oil containing reservoir for supplying oil to the oil-throwing surface,and an outlet from the said annular chamber near the axis of therotatable member and adjacent to the stationary bearing members.

2. A thrust bearing comprising -a rotatable thrust member having aradial oilthrowing surface on one sideand a bearing surface on theother, stationary bearing members cooperating with the bearing surfaceof the rotatable member, and a hollow .shell closely adjacent to therotatable member and forming an annular oil chamber 'which surro-undsthebearing members, the sald chamber having an inlet opening opposite theoil-throwing surface and an outlet opening near the 'aXis of therotatable member.

3. A horizontal bearing comprising a rotatable thrust collar having anoil-throwing surface on one side and a bearing surface on the other,stationary bearing shoes engaging a relatively large proportion of thebearing surface of the thrust collar, and an annular shell closelyadjacent to the oil-throwing and circumferential surfaces of therotatable member and forming an annular oil chamber which surrounds thebearing members, the said chamber having an inlet opening opposite theoil-throwing surface and an outlet opening near the axis of therotatable member opposite the stationary bearing members, whereby oilis/automatically forced into the chamber through the confined spacesbetween the shell and the rotatable member and escapes through theoutlet opening.

' 4. A thrust bearing comprising a rotatable thrust member having aradial. oil-throwing surface on one side and a bearing surface on theother, stationary bearing members cooperatingwith the bearing surface ofthe rotatable member, an annular shell closely adjacent to theoil-throwing and circumfer ential surfaces of the rotatable member andforming an annular oil chamber which surrounds the bearing members andwhich is provided with an outlet near the axis and on the same side ofthe thrust member as the stationary bearing members, and means forcooling t 1 shell and the bearing members.

5. A horizontal bearing comprising a rotatable thrust collar having anoil-throwing surface on one side and a bearin surface on the other,stationary bearin s oes engaging a relativel large proportion of thebearing surface 0 the thrust collar, an annular shell closely ad'acen'tto the oil-throwing and circumferential surfaces of the rotatable memberand forming an annular oil chamber which surrounds the bearing membersand has an inlet opening olpposite the oilthrowing surface and an out etopening near the axis of the rotatable member opposite the stationarybearing members, whereby oil is automatically forced through the narrowannular space etween the shell and the rotatable member and escapesthrough the outlet opening, and cooling means adjacent to the saidnarrow annular space.

6. A thrust bearing 'comprisin relatively rotatable thrust members, one0 which has an annular bearing surface and the other of which has acooperating bearing. surface provided with radial passages, and meansfor establishin and maintaining a circulation of oil radially inwardthrough the said radial passages to the bearing surfaces when the caringis in operation.

7 A thrust bearing comprising a rotatable thrust member having a bearingsurface, relatively stationary spaced bearlng members cooperatingtherewith, an oil chamber surroundin the bearing members, and means foresta lis hing a circulation of oil radially inward between thestationary members and across said bearing surface when the bearing isin operation.

8. A thrust bearing comprising a rotatable thrust member having anannular bearing surface, annularly spaced tiltable bearing shoescooperatin therewith, an oil chamber surrounding the bearing members,and means for establishing and maintainin a circulation of oilradially;Jinward t rough the spaces between the earing shoes and over said annularbearing surface when the hearing is in operation.

9. A thrust bearing comprising a rotatable thrust member having anannular bearing surface, annularly spaced tiltable bearing shoescotiperating therewith, an oil chamber e chamber adjacent to the re-'stricted circumferential opening between the surrounding the bearingmembers and means, dependent upon the rotatable member, for maintaininga circulation of oil radially inward throu h the spaces between theshoes and over sai annular bearing surface.

10. In a thrust bearing the combination of two relatively rotatablebearing members, a series of shoes pivotally mounted on one of themembers and free to tilt in any direction thereon, and an equalizingmeans for supporting one of the members and adapted to permit the saidmember to also tilt as a whole in any direction.

11. A thrust bearin comprising in combination two relative y. rotatablebearing members, one of said members bein provided with a substantiallyplane continuous bearing surface, and the other of said members carryingan annularly arranged plurality of bearing segments that are free totilt in any direction with respect to the supporting member, and anequalizing means on which one of the members is mounted to rock in anydirection.

12. A thrust bearing comprising in combination a rotating member and astationary member, one of said members being mounted to tilt freely inany. direction, and a series or plurality of bearin shoes pivotally.supported on one of sai members and adapted to tilt freely in radialplanes.

13. A thrust, beari comprising in combination two relative y rotatablemembers one of which is tiltably supported for rockin movement in andirection, and a plura ity of bearing s oes or segments supported on oneof the members and adapted to tilt freely thereon in radial planes.

14. A thrust bearing comprising in combination two relatively rotatablemembers, one of which is tiltably su ported for rocking movement in any1rection, and a pluralit of bearin shoes or segments mounte on saidtilta ly su ported member and adapted to tilt freelyt 'ereon in radialplanes. I e

15. In a thrust bearing, the combination of two relatively rotatablebearin members a tiltably mounted base and a p urality of bearing shoesmounted on the base and adapted to tilt in radial planes.

16. In a thrust bearing, the combination of two relatively rotatablebearin members a tiltably mounted base and a pIurality of bearing shoesmounted on the base and adapted to tilt in all directions.

1 In a thrust bearing, the combination of two relativel rotatablebearing members, a base mounte on one member with a ball and socketconnection, and a plurality of.

bearing shoes supported by the base and tiltable thereon in alldirections.

18. In a thrust bearing the combination with two relatively rotatablemembers, a

base mounted on one of the members by a 130' universal pivot, and aplurality of thrust bearing shoes loosely attached to the base andadapted to tilt thereon in radial planes.

19. A thrust bearing comprising a member having a substantiallycontinuous annular bearing face, a plurality of annularly arrangedbearing shoes or segments cooperating therewith, a support on which thesaid shoes are mounted for radial tilting and equalizing means forcircumferentially distributing the pressure over the surfaces ofengagement between the shoes and the annular bearing face. a Y, 20. Athrust bearing comprising in combination, two relatively rotatablemembers, a plurality of bearing shoes carried on one of the members andpivotally mounted thereon for free tilting movement in radial planes,

equalizing means for supporting one of said members and permitting it torock in any direction, and means for continuously supplying lubricant toall of the pivotally.

mounted bearing shoes when the bearing is in operation.

21. A thrust bearing comprising in combination, two relatively rotatablemembers, a plurality of bearing shoes carried on one of the members andplvotally mounted thereon for free tilting movement in radial planes,equalizing means for supporting one of said members and permitting it torock in any direction, and means for providing a continuous flow of oilradially inward to the co-,

' ing a rotatable member havlng a thrust suroperating bearing surfaces.

22. A horizontal thrust bearing comprising in combination, tworelatively rotatable members, a plurality of bearing shoes carried onone of the members and pivotally mounted thereon for free tiltingmovement in radial planes, equalizing means for supporting one of saidmembers and permitting it to rock in any direction, means formaintaining a flowof oil over the bearing .surfaces and between theshoes when the bearing is in operation, andmeans for cooling the oilbefore it flows into the bearing openings.

v 23. A thrust bearing comprising in combination two relativelyrotatable bearing members, means for mounting the said members wherebythe engaging bearing surfaces thereof are maintained in radialparallelism under changes in axial alinement and unequal heating of thebearing parts, and

means for establishing and malntaining a flow of 011 between theengaged'surfaces when the bearing 1s in operation.

24.- A thrust bearing comprising two relatively rotatable bearingmembers, means for mounting the said members whereby the thrust engagingsurfaces thereof are automatically maintained in radial parallelismunder the varying conditions of pressure thereon, and means, dependentupon the rotative movement of one of the bearing members, formaintaining a flow of oil between the thrust engaging surfaces when thehearing is in operatio 25. A horizontal thrust bearing comprising arotatable member having a plane thrust surface, a relatively stationarymember having a segmental bearing face cooperating with the thrustsurface and main tained in radial parallelismthereto, an oil tuting anoil reservoir in which the lower part of the collar may be immersed, andrelatively stationary bearing members mounted within the cylindricalshell and arranged to cooperate with'the thrust collar, the grooved endface of the collar being adapted to maintain a flow of oil fromthereservoir to the external periphery of the collar and thencelaterally and inwardly to and between the cooperating bearing surfaces.

27. A horizontal thrust bearing comprisface and a cylindricaloil-carrying surface adjacent thereto, relativelystationary thrustbearing members, an oil reservoir for immersing the lower part of saidmembers, and a cylindrical shell closely surrounding the oil-carryingsurface and communicating with the reservoir through spaced openings sodisposed that the rotation of the rotatable member establishes andmaintains a constant'flow ofoil from the reservoir to the externalperiphery of the" bearing members and thence inwardly to the thrustbearing surfaces and back into the reservoir.

28. A thrust bearing comprisin a rotatable thrust member having a sustantially horizontal axis, a cooperating member having a plurality .ofthrust sectors with oil spaces between them, an oil containing reservoirinto which the rotatable member extends, and means on the rotatablemember for establishing a flow of oil from the reservoir to the outerperiphery of the bearing members and thence inwardly into the oil spacesbetween the sectors.

29. A thrust bearing comprising cooperating rotatable. and stationarymembers, one of said members having a plurality of thrust sectors withoil spaces between them, an oil container into which the rotatablemember of the bearing extends, and means dependent on the rotatablemember for establishing a flow of oil upwardly to the top of the bearingand discharging it axially into the oil spaces between the thrustsectors. 30. A-thrust bearing comprisin a rotatable thrust member havinga su stantially horizontal axis, a cooperating member having a pluralityof thrust sectors with oil spaces between them, an oil containingreservoir into which the rotatable member extends, and varies onthe'rotatable member for establishing a flow of oil upwardly from thereservoir and discharging 1t axially into the oil spaces between thesectors.

31. A thrust bearing comprising cooperating rotatable and stationarymembers, one of said members having a plurality of thrust sectors withoil spaces between them, an oil container into which the rotatablemember of the bearing extends, and projections or vanes on the rotatablemember for transferring oil from the container to the external peripheryof the bearing and discharging it axially into the oil spaces betweenthe thrust sectorsn I 32. A thrust bearing comprising cooperativerotatable and stationary members, a

cylindrical shell surrounding and inclosing' the said members, means forcooling the inner periphery of the said shell, and means for dischargm acontinuous current of oil against the s'ai cooled inner periphery anddirecting it, into the openings between the bearing surfaces. 7

i 33. A thrust bearing comprising relatively rotatable bearing members,a cylindrical shell or housing surrounding the said members and formingtherewith an annular oil chamber, means for cooling the inner peripheryor wall of the said chamber, and

vmeans, dependent upon the rotative movement of one of the bearing.members, for maintaining a constant flow of oil outwardly against thecooled inner wall of the chamber and thence inwardly to and between thecooperating thrust engaging surfaces of the bearing members.

34. A thrust bearing comprising relatively rotatable thrust members, oneof which has an annular bearing surface and the other of which has acotiperating bearing surface provided with radial passages, means forestablishing and maintaining a circulation of oil radially inwardthrough the said radial passages to the openings between the bearingsurfaces when the bearing is in operation, and means for cooling the oilbefore it enters the bearing openings.

35. A thrust bearing comprising in combination, two relatively rotatablemembers, a plurality of bearing shoes carried on one of the members and'pivotally 'mounted thereon for free tilting movement in radial planes,and equalizing means for supporting one of said members and permittin itto rock in any direction, the parts belng ar ranged to provide acontinuous circulation of oil .over the bearing surfaces and between theshoes when the bearing is in operation.

7 36. A thrust bearing comprising in combination two relativelyrotatable bearing members, and means for mounting the said memberswhereby the engaging bearin surfaces thereof are maintained in radiaparallelism under changes in axial alinement and unequal heating of thebearing parts,

the parts of said bearing comprising means whereby flow of oil isautomatically maintained between the engaged surfaces when the bearingis in operation.

37. A thrust .bearing comprising relatively rotatable bearing membershaving cooperating bearing surfaces at least one of which is providedwith radial oil passages, and means for establishing a circulation ofoil. radially inward through the said passages to the bearing surfaceswhen the bearing is in operation.

38. A thrust bearing comprising rela tively rotatable bearing membershaving cooperating bearing surfaces at least one of which is providedwith radial oil' passages, and means'on the rotatable bearingomember forcirculating the oil radially inward through the said passages to thebearing surfaces when the bearing is in operation.

39. A thrust bearing comprising in combination two relatively rotatablemembers, one of which is supported for tilting movement in anydirection,and a plurality of bearing segments mounted on said tiltably supportedmember and adapted to tilt thereon in any direction.

40. In a thrust bearing, the combination of relatively rotatablemembers, a base mounted on one of said members and tiltable as a unit inany direction, and a plurality of bearing segments mounted on said baseto tilt both transversely and circumferentially of the bearing andcooperating with the other of said relatively rotatable members.

41. A thrust bearing comprising relatively rotatable bearing members,one of said members comprising a plurality of thrust sectors with oilpassages. therebetween, an oil container into which the rotatablebearing member extends, and means on the rotatable member fortransferring oil from said container and discharging it into the saidoil passages.

42. A. thrust bearing comprising relatively rotatable bearing members,one of said members comprismg a plurality of thrust sectors with oilpassages therebetween, an oil container into which the ro tatablebearing member extends, means on the rotatable member for transferringoil frofnsaid container and dischargin it into the said oil passages,and menas or cooling the oil before it enters said oil passages,

of relatively rotatable bearing members including a plurality of bearingsegments, equalizing means for supporting said segments, and means formounting the said segments on said equalizing means whereby saidsegments are capable of tilting both radially and circumferentially withrespect to the plane ofvbearing engagement.

is. In a thrust bearing, the combination of relatively rotatable bearingmembers including a plurality of bearing segments, equalizing means forsupporting said seg-- ments, and means for mounting the said segments onsaid equalizing means whereby said segments may tilt radially withrespect to the axis of the bearing.

45. In a thrust bearing, the combination of relatively rotatable bearingmembers including a plurality of relatively tiltable bearing segments,and equalizing means on which said bearing segments are mounted forrelative tilting movement both radially and circumferentially Withrespect to the axis of-the bearing.

46. In a thrust bearing, the combination of relatively rotatable bearingmembers including a plurality of relatively tiltable bearing segments,and equalizing means on which said segments are mounted to. tiltradially With respect to the axis of the bearing.

47. In a thrust bearing, the combination of relatively rotatable bearingmembers ineluding a plurality of relatively tiltable bearing segmentsand automatically-operated equalizing means for supporting one of saidbearing members, said segments being mounted to tilt both radiallyandcircumferentially of the axis of the bearing.

48. In a thrust bearing, the combination of relatively rotatable bearingmembers including a plurality of radially tiltable bearing segments, anda-utomatically-operated equalizing means for supporting one of saidbearing members and equitably distributing the pressure on said bearingsegments.

49. In a thrust bearing, the combinationof relatively rotatable bearingmembers including ajplurality of relatively-tiltable bearing segments,equalizing means on which one of said bearing members is tiltablymounted, 'andmeans on the rotatable bearing member for providing acontinuous flow of oil to the'cooperating bearing surfaces of-saidmembers.

50. Athrust bearing comprising, in combination, relatively rotatablebearing memhere including a plurality of relatively tiltable bearingsegments, equalizing means for supporting one of said bearing members,and means for providing a continuous flow of oil radially inward to thecooperating bearing surfaces of said members.

In Witness whereof I have hereunto set my hand this 2nd day of February,1918.

ALBERT KINGSBURY.

